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83 GS750ED Clutch problem

  • Thread starter Thread starter Anonymous
  • Start date Start date
Update 4. This evening I dismantled the clutch assy again. I used a piece of glass to check for warped steel plates, they looked fine.
I double checked the thickness of the fiber plates; the Vernier resolution is in cm, so these measured over 2.5 mm, but accuracy is not perfect.
I checked the factory manual; it shows the seat, wave washer and a metal plate then the ring stopper. This is how I have it configured at this time.
I reassembled, starting with a fiber plate, metal plate with sharp edge facing away from the engine.
I now have 8 and 8 if you count the metal plate behind the ring stopper.
I reassembled, topped off the oil, etc. readjusted the clutch as per the manual, put it back on the center stand and started it up.

It was about 8 pm when I completed this, too dark to get this out of my shed and drive. So on the center stand, running, finding neutral was no problem, in 1st gear, I could almost stall the engine, and I probably could have if I stepped on the brake, but I was leaning over using my hand.
Tomorrow I'll drive it and see if the clutch slips, if it does, I think I need new plates.

If I replace the fiber plates, do I also need to replace the steel plates, if they look ok?

I noticed as the machine began to warm up, the idle crept up from 1-1.5 K rpm to 2.5 - just under 3 K rpm, any ideas on that?

Thanks

Bob
 
Vernier resolution is in cm
Click to expand...
Did you mean mm? I hope so, but even so, this is not good enough. You need a set of caliphers where the resolution is 0.001". There are 2.54 cm/inch or 25.4mm/inch - you are not even to 1/100 of an inch resolution.

You should be able to get a decent set for less than 30-40 dollars. They come in handy for all types of measurements.

My money is still on the clutch plates being marginal or out of spec. You also mentioned the pressure plate springs may be on the short side. If they are too weak, the clutch will slip. A set of caliphers will make that measurement. There is a spec on the metal plates also.

Measure everything and compare to spec. If out or marginal, buy original equipment springs and plates.
 
Swanny, got it - I'll get the proper tool. Ron Ayers is about half the price for OEM, Vs Bike Bandit, does he ship fast?

thanks

Bob
 
If it's in stock you get it pretty quick. I ordered a set of chain adjusters from them awhile back and it took about 2 weeks. But then they were parts I suspect were not in stock.
 
Hey Mister T - how about a signature of "I pity the fool". I love that quote.
 
Update 5. Borrowed a digital vernier, measured the plates. Drive plates were 2.4-2.5mm, the factory spec is 2.7 to 2.9, service limit is 2.6. The driven plates were very close to spec at 1.99, spec is 2.0.
These babies are worn and I'll be replacing them all.

Swanny - I'll hold off on the quotes for now :)
 
Final update - I hope.
Installed 8 new fiber plates tonight. That cleared the clutch problem. Springs are on backorder.
Oh yeah, and the rattle is gone too.
Thanks everyone for your input and great advice.
Now it's on to idle problems.
 
Great news. I was once the World Champion until I was railroaded. B!tch took everything.
 
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